Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.

• Minimizing Coherent Thermal Conductance by Controlling the Periodicity of Two-Dimensional Phononic Crystals 

  Tian, Yaolan; Puurtinen, Tuomas A.; Geng, Zhuoran; Maasilta, Ilari J. (American Physical Society, 2019)

  Periodic hole-array phononic crystals (PnCs) can strongly modify phonon dispersion relations and have been shown to influence thermal conductance coherently, especially at low temperatures where bulk scattering is suppressed. ...

• Controlling thermal conductance using three-dimensional phononic crystals 

  Heiskanen, Samuli; Puurtinen, Tuomas A.; Maasilta, Ilari J. (AIP Publishing, 2021)

  Controlling thermal transport at the nanoscale is vital for many applications. Previously, it has been shown that this control can be achieved with periodically nanostructured two-dimensional phononic crystals for the case ...

• Studies of two-dimensional and three-dimensional phononic crystal structures 

  Tian, Yolan (University of Jyväskylä, 2016)

  This thesis focuses on studying phononic crystal structures. More specifically, it is aimed at fabrication and measurement of thermal properties of two-dimensional (2D) periodic microstructures and three-dimensional (3D) ...

• Thermal conductance of pillar-based phononic crystals at sub-Kelvin temperatures 

  Korkiamäki, Tatu (2020)

  Fononikide on keinotekoinen periodinen rakenne yhdessä, kahdessa tai kolmessa ulottuvuudessa, joka vaikuttaa fononien eli elastisten aaltojen kvanttien etenemiseen. Koska lämmön johtuminen eristeissä ja puolijohteissa ...

• A Composite Phononic Crystal Design for Quasiparticle Lifetime Enhancement in Kinetic Inductance Detectors 

  Puurtinen, T. A.; Rostem, K.; de Visser, P. J.; Maasilta, I. J. (Springer, 2020)

  A nanoscale phononic crystal filter (reflector) is designed for a kinetic inductance detector where the reflection band is matched to the quasiparticle recombination phonons with the aim to increase quasiparticle lifetime ...